A5005936351- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Plant and animal studies
- Insect Resistance and Genetics
- Insect Pest Control Strategies
- Forest Insect Ecology and Management
- Insect behavior and control techniques
- Biological Control of Invasive Species
- Agricultural Practices and Plant Genetics
- Entomopathogenic Microorganisms in Pest Control
- Weed Control and Herbicide Applications
- CRISPR and Genetic Engineering
- Animal and Plant Science Education
- Physiological and biochemical adaptations
- Seed Germination and Physiology
- Seedling growth and survival studies
- Plant Parasitism and Resistance
- Agricultural pest management studies
- Insect symbiosis and bacterial influences
- Hymenoptera taxonomy and phylogeny
- Insect Pheromone Research and Control
- Genetically Modified Organisms Research
- Plant and Fungal Interactions Research
- Plant Virus Research Studies
- Study of Mite Species
U.S. Vegetable Laboratory
2019-2025
United States Department of Agriculture
2023
Agricultural Research Service
2023
Clemson University
2017-2019
Cornell University
2015-2018
New York State Department of Agriculture and Markets
2015-2018
Tree Fruit Research Laboratory
2013-2017
Washington State University
2013-2017
Washington Tree Fruit Research Commission
2013-2016
Abstract Background The fall armyworm ( Spodoptera frugiperda (J.E. Smith)) is a highly polyphagous agricultural pest with long-distance migratory behavior threatening food security worldwide. This has host range of > 80 plant species, but two strains are recognized based on their association corn (C-strain) or rice and smaller grasses (R-strain). population genomics the United States (USA) remains poorly characterized to date despite its threat. Results In this study, structure genetic...
We report the first known incidence of two parasitoid species invasive pest, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), in United States (US). The discovery Ganaspis brasiliensis (Ihering) (Hymenoptera: Figitidae) and Leptopilina japonica (Novković & Kimura) northwestern Washington State (US) was made shortly after their nearby southwestern British Columbia (Canada), indicating that contiguous populations these are established both countries. specimen L. from collected fall...
Abstract Conservation biological control in agriculture primarily relies on avoiding pesticides that may harm key natural enemies. In temperate tree fruit crops, the European earwig, Forficula auricularia (L.) has only recently become appreciated as an important predator of economic pests, particularly woolly aphids and pear psylla. Therefore, non-target effects orchard earwigs are largely understudied. This is true for herbicides, which likely to be exposed due their foraging behavior...
The European earwig, Forficula auricularia L. (sensu lato), has a dual role in temperate tree fruit crops-a pest of stone and predator key pests pome fruit. Some growers trap earwigs crops where they are pests, subsequently releasing them as an augmentative biological control strategy. Effective earwig monitoring trapping critical for understanding their potential orchards. Traps made rolled, corrugated cardboard have long been used monitoring; however, no standardized studies investigated...
Biological control in conventional agroecosystems involves the integration of chemical and conservation tactics, requiring knowledge pesticide non-target effects on key natural enemies. Even for enemy groups such as predatory mites (Acari: Phytoseiidae), where have been thoroughly examined, there may be significant differences species susceptibility to specific active ingredients, including newer selective products. Using bioassays, we examined lethal (female mortality) sublethal (fecundity,...
Many vegetable insect pests are managed using neonicotinoid and pyrethroid insecticides. Unfortunately, these insecticides toxic to many bees natural enemies no longer control some that have developed resistance. Anthranilic diamide provide systemic of herbivorous arthropod pests, but exhibit low toxicity beneficial arthropods mammals, may be a promising alternative neonicotinoids pyrethroids. diamides delivered crops via seed, in-furrow, or foliar treatments; therefore, it would desirable...
A key element of conservation biocontrol is identifying and limiting the use pesticides that have substantial non-target effects on natural enemies to prevent disruption. The Phytoseiidae (predatory mites) are one most studied enemy groups in field pesticide effects. Although there research insecticides arthropod enemies, herbicide impacts limited. Natural including phytoseiids, associate with weeds due presence alternative prey, shelter, or floral resources. Therefore, a whole-systems...
The effects of repellency or irritancy in Galendromus occidentalis (Nesbitt) were studied for three rates 16 pesticides commonly used apple production. Adult female mites exposed to residues a series choice bioassays (treated and untreated half bean leaf disks). Novaluron, carbaryl, mancozeb + copper hydroxide, sulfur the most repellent materials G. occidentalis, with females consistently avoiding treated side disk. Spirotetramat, flubendiamide, cyantriniliprole caused an intermediate...
Abstract Spiders are key predators in many agroecosystems, including orchards. Despite the importance of spiders biological control, pesticide nontarget effects on this group poorly described. This is especially true for herbicides, which frequently encounter as they move between ground cover and tree canopy. We sought to determine seven herbicides used orchards three species that commonly found Washington state (USA) orchards: Pelegrina aeneola (Curtis) (Araneae: Salticidae), Philodromus...
The European earwig Forficula auricularia (L.) (Dermaptera: Forficulidae) is an omnivorous insect that considered a minor pest of stone fruit and key predator pests in pome orchards. In many orchards, earwigs are absent or low abundance due to broad-spectrum spray programs the slow recolonization rate earwigs. Orchards transition organic “selective” conventional often struggle achieve effective levels biological control, thus, may benefit from inoculating expedite their re-establishment....
Abstract Organic vegetable farmers rely heavily on labor-intensive tillage for weed management, which adversely affects soil health and harms beneficial insects that consume crop pests seeds. Using cover residues as a weed-suppressive mulch enables some reduction in tillage, combining this tool with recently developed organic herbicides may further enhance suppression production. However, also affect insects, their nontarget effects are unknown. Here, we examine the combined impacts of...
Erythritol, an artificial sweetener, has shown promise as organic, human-safe insecticide. Recently, erythritol applications were to be successful at controlling pear psylla (Cacopsylla pyricola (Förster)) (Hempitera: Psyllidae), the most important pest of in Pacific Northwest, USA. Twospotted spider mite (Tetranychus urticae Koch) (Trombidiformes: Tetranychidae) and rust (Epitrimerus pyri (Nalepa)) Eriophyidae) can also highly damaging pests. Their common natural enemy, Galendromus...
Abstract BACKGROUND Historically, integrated mite management in Washington apple orchards has focused on conservation of the predatory Galendromus occidentalis (Nesbitt) to reduce secondary pest pressure. However, pesticide use changed include more selective products, coinciding with a shift community composition new major predator, Amblydromella caudiglans (Schuster). There is evidence that A. sensitive than G. . Therefore, updates selectivity recommendations are needed conserve this ‘new’...
The phytoseiid mites Galendromus occidentalis and Amblydromella caudiglans are critical for conservation biological control of pest in Washington State, U.S.A. apples. While the non-target effects insecticides on phytoseiids well described, research herbicide is limited. Using laboratory bioassays, we examined lethal (female mortality) sublethal (fecundity, egg hatch, larval survival) seven herbicides five adjuvants A. G. occidentalis. mixing with recommended were also tested to determine if...
Twospotted spider mite, Tetranychus urticae Koch (Trombidiformes: Tetranychidae), is an important, worldwide pest of watermelon, Citrullus lanatus L. (Thunb.) Matsum. & Nakai (Cucurbitales: Cucurbitaceae). Feeding results in chlorotic spots and leaf necrosis, which can substantially reduce yields. In T. managed solely with acaricides. Issues acaricide resistance pesticide label restrictions on number applications per season require research-based recommendations products effective,...